JP2011047813A - Body surface temperature checker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To measure and check the body surface temperature of people who go in and out individually and surely. <P>SOLUTION: The body surface temperature checker 1 includes: a measuring object detecting unit 3 for detecting whether a measuring object is present within a measurable area and outputting detection information; a body surface temperature measuring unit 2 for detecting infrared rays emitted from the measuring object and measuring the body surface temperature of the measuring object in a noncontact manner on the basis of the detected infrared dose; and a control unit 4 for determining the presence and leaving of the measuring object with respect to the measurable area on the basis of the detection information from the measuring object detecting unit 3 and comparing a temperature signal from the body surface temperature measuring unit 2 with timing at which it is determined that the measuring object is present within the measurable area as a trigger to a preset threshold to determine whether or not the temperature signal is normal. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a body surface temperature checker for measuring a body surface temperature of a person entering and exiting a predetermined area, and in particular, positioned and installed at a predetermined place where a person enters and exits such as various facilities such as factories and laboratories. In addition, the present invention relates to a body surface temperature checker that measures body surface temperature in a non-contact manner by using a person who enters and exits as a measurement subject.

  Conventionally, as a device for monitoring the temperature of an object in a predetermined region, for example, a temperature monitoring device disclosed in Patent Document 1 below is known. This temperature monitoring apparatus includes an infrared TV camera, an A / D converter, a temperature table storage memory, a frame memory, a LUT storage memory composed of a pseudo color LUT and a monochrome LUT, a D / A converter, a temperature setting circuit, and a comparator. An infrared thermal image signal converted into temperature data is obtained by imaging an object with an infrared TV camera. The comparator controls the selection of the two types of LUTs in the LUT storage memory, and when the temperature represented by the infrared thermal image signal is outside the threshold temperature, the pseudo color thermal image signal is selected and an alarm is output to the TV monitor. In other cases, the black and white thermal image signal is selected and sent to the TV monitor. As a result, it is possible to know clearly and quickly which region of the object the temperature deviates from the threshold value.

JP-A-10-206242

  However, although the temperature monitoring device disclosed in Patent Document 1 described above can identify a region outside the threshold in the region by color and black and white, the human body surface temperature in the region can be identified by one person. It was not suitable for checkers that measure and check reliably.

  Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to provide a body surface temperature checker capable of reliably measuring and checking the body surface temperature of a person entering and exiting one by one.

In order to achieve the above object, the body surface temperature checker according to claim 1 of the present invention is positioned and installed at a predetermined location where a person enters and exits, and the body surface temperature is determined by using the person entering and exiting as a measurement subject. A body surface temperature checker that measures non-contact one by one,
A measurement subject detection unit that detects whether the measurement subject exists in the measurable region and outputs detection information; and
A body surface temperature measurement unit that detects infrared rays emitted from the measurement subject, measures the body surface temperature of the measurement subject in a non-contact manner based on the detected amount of infrared rays, and outputs a temperature signal;
Based on detection information from the measurement subject detection unit, the presence and departure of the measurement subject from the measurable region is determined, and the timing when it is determined that the measurement subject exists in the measurable region is triggered And a control unit that compares the temperature signal from the body surface temperature measurement unit and a preset threshold value to determine whether the temperature signal is normal or not.

The body surface temperature checker according to claim 2 is the body surface temperature checker according to claim 1,
The information processing apparatus may further include a notification unit that performs notification according to a determination result of whether or not the measurement target exists for the measurable region and / or a determination result of whether or not the temperature signal is normal.

The body surface temperature checker according to claim 3 is the body surface temperature checker according to claim 1 or 2,
After the determination of the temperature signal, the control unit returns to a standby state when the control unit determines that the measurement subject has left the measurable region.

The body surface temperature checker according to claim 4 is the body surface temperature checker according to claim 2 or 3,
After receiving the temperature signal from the body surface temperature measuring unit, the control unit determines that the measurement subject has left the measurable region before the result of determining whether the temperature signal is normal is obtained. When this occurs, the notification unit identifies the fact that the measurement is abnormal, and returns to the standby state after notification for a predetermined time.

  According to the present invention, it is possible to reliably measure and check the body surface temperature of a person going in and out one by one.

  The configuration measured person is provided with a measurement range to be present whether the discrimination function, the measurement subject's body surface temperature is normal or not discrimination function when the measured person is present in the measurement range Therefore, the body surface temperature of the measurement subject can be measured in a short time.

Furthermore, after the body surface temperature checker is installed, it is not necessary for a person to directly operate the body surface temperature checker, and the body surface temperature of the measurement subject can be easily measured without contact. In addition, since the body surface temperature is measured without touching the body surface temperature checker at all, the body surface temperature checker 1 can be kept clean.
Therefore, it is possible to repeatedly and continuously measure a large number of people without having to disinfect the body surface temperature checker at every measurement end.

It is a block block diagram of the body surface temperature checker which concerns on this invention. It is a perspective view which shows the external appearance of the body surface temperature checker which concerns on this invention. It is a timing chart at the time of discrimination | determination of presence of a measurement object person and detachment in the body surface temperature checker according to the present invention. It is a timing chart at the time of body surface temperature OK / NG discrimination | determination in the body surface temperature checker which concerns on this invention. It is a timing chart at the time of measurement abnormality discrimination in the body surface temperature checker concerning the present invention. It is a flowchart of the display and ringing operation in the body surface temperature checker according to the present invention. It is a timing chart which shows a series of flows at the time of measurement abnormality in the body surface temperature checker which concerns on this invention. It is a timing chart which shows a series of flows at the time of body surface temperature OK in the body surface temperature checker which concerns on this invention. It is a timing chart which shows a series of flows at the time of body surface temperature NG in the body surface temperature checker which concerns on this invention.

  Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the accompanying drawings.

  The body surface temperature checker according to the present invention is provided in a predetermined predetermined place (for example, a wall surface of an entrance / exit, a door surface of an entrance / exit, an entrance / exit vicinity) such as various facilities such as factories and laboratories. In order to detect the presence or absence of fever of people entering and exiting as a crisis management measure, the body surface temperature (face body surface temperature) is contactless one by one with the person being measured as the subject of measurement. It is to measure with.

  As shown in FIG. 1, the body surface temperature checker 1 of this example includes a body surface temperature measurement unit 2, a measurement subject detection unit 3, a control unit 4, a storage unit 5, a notification unit 6, and an input / output unit 7. The elements are schematically configured by being mounted on a rectangular housing 8 as shown in FIG.

  The body surface temperature checker 1 is configured as a desktop type using a holder (supporting member) 9 having the structure shown in FIG. 2, and is positioned and installed, for example, on an installation table provided near an entrance where a person to be measured enters and exits. The holder 9 shown in FIG. 2 includes a pair of angles 10 that are bent in a U-shape. The pair of angles 10 are provided with support members 11 between the one end portions 10a and 10a and between the bent portions 10b and 10b so as to maintain a predetermined interval according to the width of the rear surface side of the housing 8. Further, the other end portions 10 c and 10 c of the pair of angles 10 are pivotally supported on the back side of the housing 8 so as to be rotatable. Thereby, the body surface temperature checker 1, about the rotation shaft 10d, which enables the angle adjustment by rotating in the direction of arrow A in FIG.

  Further, a mirror 13 having an alignment region 12 for guiding one person to be measured to a predetermined position is attached to the upper surface of the housing 8. The alignment region 12 is formed by, for example, a rectangular line that indicates a region for accommodating a part of the body such as a face or eyes, a line that represents the contour of the part of the body, or the like. For example, when the alignment region 12 made of a rectangular line is used, the person to be measured stands in front of the body surface temperature checker 1 and puts the mirror 13 so that his / her face falls within the rectangular line region of the alignment region 12. Look through and align. Thereby, the measurement subject's up-down, left-right, and front-back position with respect to the body surface temperature checker 1 are determined automatically, and the measurement position when measuring the body surface temperature can be unified.

  The body surface temperature checker 1 is not limited to the desktop type configuration as shown in FIG. 2, and may be any configuration that can position and install the housing 8. For example, the body surface temperature checker 1 is installed by attaching both sides of the housing 8 to a U-shaped holder that is pivotally supported from the back side, and positioning the holder on the wall surface of the doorway or the door surface. Also good.

  The body surface temperature measuring unit 2 detects infrared rays radiated from the measurement subject existing within the measurable range of the body surface temperature checker 1 and based on the detected amount of infrared rays, the body surface temperature (face of the measurement subject) is detected. The surface temperature is measured in a non-contact manner. More specifically, the body surface temperature measurement unit 2 includes an infrared detection unit 2a and an A / D conversion unit 2b. The infrared detection means 2a is composed of, for example, a multi-pixel thermal infrared sensor composed of a thermopile element having a plurality of pixels, and photoelectrically converts incident infrared rays incident on each pixel via the condenser lens 2c. A photoelectrically converted electrical signal (analog signal) is output for each pixel. The A / D conversion means 2b A / D converts the electrical signal (analog signal) for each pixel from the infrared detection means 2a, and the A / D converted digital signal is thermal image data (temperature signal) for each pixel. As output.

  Here, the body surface temperature measurement unit 2 will be further described. In general, infrared sensors are used as human body detection sensors that detect the intrusion of suspicious persons, flame detection sensors that detect fires, temperature monitoring sensors that detect temperature abnormalities, and the like. However, in these infrared sensors, an element for detecting infrared rays is one pixel. For this reason, only the temperature of the “point” can be measured.

  Therefore, the infrared sensor used in the body surface temperature measuring unit 2 of the present invention is configured by an infrared sensor having a large number of pixels. By using the multi-pixel infrared sensor, the body surface temperature measuring unit 2 can measure the temperature in a certain area, not the temperature of a point like an infrared sensor having only one pixel. . Therefore, in view of the object of the present invention, it is possible to measure the body surface temperature of the entire face of the measurement subject by using a multi-pixel infrared sensor.

  If, thus measuring when the subject's body surface temperature was measured, to measure some of the face of the measured person, i.e. the body surface temperature of only "point" with an infrared sensor of only one pixel. However, the human face nose and eyes, lips, due to differences in the body surface temperature depending on the location as the cheeks, the reliability of the measurement result is deteriorated. On the other hand, if the body surface temperature of the entire measurement subject's face is measured using a multi-pixel infrared sensor as in the present invention, the temperature distribution of the entire face is measured.For example, the highest body surface temperature is measured. If it is output as a temperature signal, accurate measurement is always possible. For this reason, the body surface temperature measuring unit 2 is composed of a multi-pixel infrared sensor.

  The measurement subject detection unit 3 calculates the distance to the measurement subject approaching the body surface temperature checker 1 and outputs detection information. Here, as an example, the detection information will be described as information on the distance measured by the distance measuring unit 3c. To further illustrate, the measured person detecting unit 3, the light emitting means 3a, constituted by the distance measuring sensor including light receiving means 3b, and the distance measuring means 3c. The light projecting means 3 a irradiates light toward the measurement subject approaching the body surface temperature checker 1. Light receiving means 3b are, for example, a light receiving element such as CCD or PSD, which receives reflected light from the measurement subject with the irradiation of light from the light projecting means 3a. Distance measuring unit 3c calculates the distance to the measured person on the basis of the output of the light receiving unit 3b, and outputs the calculated result as detection information.

  As described above, the body surface temperature measuring unit 2 is composed of a multi-pixel infrared sensor. For this reason, the person to be measured needs to approach a specific range from the body surface temperature checker 1 and enter the measurable region so that his / her face enters the measurement region of the multi-pixel infrared sensor. The body surface temperature measuring unit 2 starts measuring the body surface temperature only when the measurement subject enters the measurable region.

  The control unit 4 is composed of a CPU that performs overall control of each component of the body surface temperature checker 1, and determines and measures the existence and detachment of the measurement subject within the measurable range based on the detection information from the measurement subject detection unit 3. target detector detecting information of the determination start results trigger signal based on the by the body surface temperature measuring portion 2 of the body surface temperature measurement and termination control from 3, display control of the body surface temperature measurement results, when Ya measurement NG occurs Performs alarm control when a measurement abnormality occurs. More specifically, the control unit 4 includes a distance determination unit 4a, a trigger generation unit 4b, a body surface temperature determination unit 4c, a notification control unit 4d, and a correction unit 4e.

  The distance discriminating means 4a discriminates the presence / absence of the measurement subject within the measurable range based on whether or not the detection information from the measurement subject detection unit 3 is within a preset measurable range. Measurable range as a reference, the measured person is in close proximity to the body surface temperature checker 1, the distance which the surface temperature of the whole face with a certain width so as to measure is selected. In this example, for example, 100 mm to 250 mm is set as the measurable range.

  As shown in the timing chart of FIG. 3, the distance determination unit 4 a moves the measurement target when the measurement target moves and approaches the body surface temperature checker 1, and the detection information of the measurement target detection unit 3 becomes 100 mm to 250 mm. It is determined that the person approaches the body surface temperature checker 1 and exists within the measurable range (existence determination).

  Further, the distance discriminating means 4a detects whether the measurement subject existing within the measurable range moves too close to the body surface temperature checker 1 and the detection information of the measurement subject detection unit 3 is less than 100 mm, or the measurement subject Moves away from the body surface temperature checker 1 and the detection information of the measurement subject detection unit 3 reaches 250 mm or more, it is determined that the measurement subject leaves the body surface temperature checker 1 and does not exist within the measurable range. Yes (withdrawal determination).

  Further, the distance discriminating means 4a can measure the measurement subject when the measurement subject moves and the detection information of the measurement subject detection unit 3 becomes less than 100 mm or 250 mm or more at the body surface temperature discrimination timing described later. It is determined that it is out of the range (measurement abnormality determination).

  The trigger generation means 4b is a trigger for instructing the transition from the “standby state” to the “measurement start state” when the distance determination means 4a determines that the detection information of the measurement subject detection unit 3 exists within the measurable range. A signal is being output.

  In addition, the trigger generation unit 4b is configured such that when the distance determination unit 4a determines that the measurement subject existing within the measurable range has moved and the detection information of the measurement subject detection unit 3 has left the measurable range, A trigger signal is output to instruct the transition from the “measurement complete state” to the “standby state”.

  Furthermore, the trigger generation means 4b is used when the measurement object moves and the distance determination means 4a determines that the detection information of the measurement object detector 3 is less than 100 mm or 250 mm or more at the body surface temperature determination timing described later. In addition, a trigger signal indicating that a “measurement abnormal action” has occurred is output.

  When a trigger signal for instructing the transition from the “standby state” to the “measurement start state” is input, the body surface temperature determination unit 4 c receives the trigger signal as a trigger from the body surface temperature measurement unit 2 for each pixel. The maximum temperature is retrieved from the captured thermal image data for each pixel, the retrieved maximum temperature is taken as the measured value, and the measured value is compared with the threshold value to determine whether the measured value is normal. (OK / NG discrimination). In addition, the threshold value compared with a measured value is preset to the value of the body surface temperature recognized as abnormal.

  More specifically, as shown in the timing chart of FIG. 4, the body surface temperature discriminating means 4c performs the body surface temperature discrimination timing after a predetermined time (about 2 seconds) has passed since the measurement subject entered the measurable range. as searches the maximum temperature in the thermal image data from the body-surface temperature measuring portion 2 at that time, the retrieved maximum temperature, as a measure indicating the body surface temperature of the measurement target person existing within a measurable range Yes. The body surface temperature determination means 4c compares the preset threshold this measured value, the measured value is equal to or less than the threshold value, the measured value is judged to be normal (OK determination). On the other hand, if the measured value is larger than the threshold value, it is determined that the measured value is abnormal (NG determination).

  Further, as shown in the timing chart of FIG. 5, the body surface temperature discriminating means 4c is measured by the measurement subject before a predetermined time elapses (about 2 seconds) from the state in which the measurement subject enters the measurable range. When a trigger signal indicating that a “measurement abnormal action” has occurred is input from the trigger generation means 4b after leaving the possible range, it is determined as “measurement abnormality”.

  The notification control unit 4d controls the notification unit 6 based on the ON / OFF state of the power supply, the determination result of the distance determination unit 4a, the determination result of the body surface temperature determination unit 4c, and the trigger signal from the trigger generation unit 4b. .

  The correction means 4e is such that the measured body surface temperature varies depending on the temperature, solar radiation and other factors, and the distribution of the observation results of the measurement subject group taking the same behavior (walking from the station to the company) such as when going to work is Since the tendency tends to be uniform in many cases, the body surface temperature is corrected or the threshold value is corrected by a preset shift value in accordance with these factors and trends. For example, in winter, the temperature distribution is low because the temperature is low. In this case, the influence of the surroundings can be canceled to some extent by performing shift correction with a higher body surface temperature or shift correction with a lower threshold.

  The memory | storage part 5 has memorize | stored sequentially as a historical information the measurement result when a measurement subject exists in a measurable range. Note that the measurement result stored in the storage unit 5 can be automatically deleted by the control of the control unit 4 when the measurement subject is out of the measurable range.

  The notification unit 6 controls whether or not the power source is turned on, whether or not the measurement subject exists in the measurable range, whether or not the measurement subject has left the measurable range, and whether or not Various operating states such as whether the result is normal are identified and notified to the measurement subject. In this example, the notification part 6 is comprised from the display means 6a and the ringing means 6b.

  The display means 6a includes a plurality of indicators such as LEDs. In this example, the LED6a1 orange, and green LED6a2, the display unit 6a is constituted by three LED red LED6a3. The display means 6a identifies and displays various operating states based on lighting / flashing and a difference in emission color, and notifies the measurement subject. Specifically, when the power is on, the orange LED 6a1 is lit. When shifting from the “standby state” to the “measurement start state”, the orange LED 6a1 blinks. When shifting from the “measurement completed state” to the OK result display, the green LED 6a2 is lit. When shifting from the “measurement completed state” to the NG result display, the red LED 6a3 blinks. When the “abnormal measurement action” occurs after the measurement is started, for example, when the measurement position is not appropriate or when the measurement subject leaves during the measurement, the green LED 6a2 and the red LED 6a3 are lit simultaneously.

  The sounding means 6b comprises a buzzer and informs the person to be measured of various operating states by sound differences. Specifically, when the transition from the "standby state" to the "measurement start state" sounding means 6b is sounding a "beep beep". When shifting to the “measurement complete state”, the sounding means 6b sounds “beep”. When a “measurement abnormal action” occurs after the start of measurement, the sounding means 6b sounds “Pi-oo”. When the display of the result of the body surface temperature measurement is NG, the sounding means 6b sounds “beep-beep-beep”. When the display of the result of the body surface temperature measurement is OK and the state shifts to the “standby state”, the sounding means 6b sounds “beep”.

  The input / output unit 7 inputs and outputs various signals and data, and includes a contact interface and a communication interface. When the control unit 4 determines body surface temperature abnormality or measurement abnormality, the contact interface outputs a contact signal indicating the type of the determination as an alarm signal to the outside. The communication interface connects the body surface temperature checker 1 to an external terminal device such as a personal computer so as to be communicable, and transfers thermal image data from the body surface temperature checker 1 to the external terminal device or from the external terminal device to the body. Various settings (threshold value setting, shift value setting, etc.) for the surface temperature checker 1 are performed.

  Although not specifically illustrated, the body surface temperature checker 1 of this example includes a LAN interface as the input / output unit 7 and communicates with an external terminal device provided in, for example, a management room or a management center via the LAN interface. The thermal image by the body surface temperature checker 1 can be monitored on the external terminal side by using dedicated application software. In addition, the measurement value obtained by the body surface temperature checker 1 and discrimination by application software can be used.

  Next, an operation including a display and a sound processing by informing unit configured body surface temperature checker 1 as described above will be explained with reference to a flow chart and a timing chart of FIG. 7 to FIG. 9 in FIG.

  When the body surface temperature checker 1 is turned on, the orange LED 6a1 is lit by the control of the notification control means 4d. By turning on the orange LED 6a1, the body surface temperature checker 1 shifts to the “standby state” (ST1). When the measurement subject approaches the body surface temperature checker 1 from this “standby state” and it is determined that the measurement subject exists in the measurable range by the “existence determination” of the distance determination means 4a described above, a notification is made. Under the control of the control means 4d, the orange LED 6a1 blinks and the sounding means 6b sounds “beep”, and the body surface temperature checker 1 shifts from the “standby state” to the “measurement start state” (ST2).

  When the body surface temperature checker 1 shifts to the “measurement start state”, the body surface temperature measurement of the measurement subject within the measurable range by the body surface temperature measurement unit 2 is started. The body surface temperature discriminating unit 4c then enters the measurable range when it is determined that the subject is present in the measurable range by the “existence discriminating” of the distance discriminating unit 4a described above. Taking the thermal image data from the body surface temperature measurement unit 2 as the body surface temperature determination timing after a lapse of a predetermined time (about 2 seconds) from the state, the maximum temperature of the captured thermal image data is searched, and this maximum searched The temperature is a measured value indicating the body surface temperature of the measurement subject existing within the measurable range. And the body surface temperature discrimination | determination means 4c compares this measured value with the preset threshold value.

  At this time, as shown in FIG. 7, as the measurement abnormal action, when the measurement position is not appropriate or the measurement subject leaves the measurable range in the middle of the measurement, By "abnormality determination", it is determined that the person to be measured has left the measurable range. Under the control of the notification control means 4d, the green LED 6a2 and the red LED 6a3 are turned on at the same time, and the sounding means 6b sounds "Poo-o". (About 1 second from the departure determination: ST3). This notifies the measurement subject that there is an abnormal measurement action. Then, when a predetermined time (for example, about 1 second) elapses from the separation determination, the green LED 6a2 and the red LED 6a3 are turned off and the orange LED 6a1 is turned on and returns to the “standby state” by the control of the notification control unit 4d ( ST1).

  When the measurement range to the body surface temperature measurement of the measured person completes present, the control of the notification control unit 4d, sounding means 6b is sounding a "beep" (ST4). Then, when “OK / NG discrimination” of the body surface temperature discriminating means 4c described above, that is, when the measured value is discriminated to be normal when the measured value is below the threshold value, as shown in FIG. 8, the orange LED 6a1 is controlled by the notification control means 4d. Is turned off and the green LED 6a2 is turned on as “result display” indicating that the measured value is normal (ST5). Thereafter, when the measurement subject leaves the measurable range (about 0.5 seconds from the separation determination), the green LED 6a2 is turned off, the orange LED 6a1 blinks and the ringing unit 6b is controlled by the notification control unit 4d. Beeps (ST6), the orange LED 6a1 is lit and returns to the “standby state” (ST1).

  On the other hand, when “OK / NG discrimination” of the body surface temperature discrimination means 4c described above, that is, when the measured value is larger than the threshold value and is judged to be abnormal, as shown in FIG. The orange LED 6a1 is turned off, the red LED 6a3 blinks, and the ringing means 6b rings “beep” as a “result display” indicating that the measured value is abnormal (ST7). Thereafter, when the measurement subject leaves the measurable range (about 0.5 seconds after the departure determination), the red LED 6a3 is turned off and the orange LED 6a1 is turned on by the control of the notification control unit 4d to enter the “standby state”. Return (ST1).

  Thus, in the body surface temperature checker according to the present invention, the measurement subject approaches the body surface temperature checker from the standby state when the power is turned on, and the measurement subject positions the body part in the alignment region 12 of the mirror 13. In addition, if the measurement subject exists within the preset measurable range, the body surface temperature measurement of the measurement subject is started with the timing as a trigger, and the measurement result (about 2 seconds) ( OK / NG, measurement error, etc.) to display the identification, if the withdrawal measuring person from the measurement range, body surface temperature checker is adapted to return to the standby state. Thereby, the body surface temperature of the person who goes in and out can be reliably measured and checked one by one.

  The body surface temperature checker according to the present invention, whether the discrimination function measured person is present in the measurement range, the normal body surface temperature of the measurement subject when the measured person is present in the measurement range is Therefore, the body surface temperature of the measurement subject can be measured in a short time.

  Further, after the body surface temperature checker 1 is installed, it is not necessary for a person to directly operate the body surface temperature checker 1, and the body surface temperature of the person to be measured can be easily measured without contact. In addition, since the body surface temperature is measured without touching the body surface temperature checker 1 at all, the body surface temperature checker 1 can be kept clean.

  By the way, in embodiment mentioned above, the threshold value compared with the temperature signal from the body surface temperature measurement part 2 is made into one, OK / NG is discriminate | determined by whether the temperature signal exceeded the threshold value, and according to the discrimination | determination result. Although described as performing notification, a plurality of threshold values to be compared with the temperature signal can be set. In this case, the temperature signal is compared with each threshold value, and the comparison result is identified and notified.

  Moreover, although the example which identifies and displays the measurement result and measurement abnormality of body surface temperature with the display means 6a which consists of three LED was demonstrated as various state display, it is not limited to the display means 6a which consists of three LED. Any configuration that can identify and display various status displays is acceptable. For example, when the measurement result of the body surface temperature is OK, the green LED is turned on, and when the measurement result is NG, the green LED is blinked, so that the measurement result can be identified and displayed by one LED. Further, the display is not limited to the LED display, and for example, a liquid crystal display can be used for identification display by character display, or the LED and the liquid crystal display can be used in combination.

  Furthermore, in this example, the body surface temperature of the person to be measured based on the thermal image data from the body surface temperature measuring unit 2 is compared with a threshold value, and the above-described discrimination is performed by the body surface temperature discrimination unit 4c. It is also possible to convert the body surface temperature into body temperature, compare the converted body temperature with a preset threshold value, perform the above determination, and perform temperature correction as necessary.

  As the measured person detecting unit 3, for example, light is irradiated to the measured person, it receives the reflected light caused by the irradiation of the light, and calculates the distance to the measured person on the basis of the received light Alternatively, the person to be measured may be detected, or an ultrasonic wave may be irradiated instead of light, and the distance may be calculated by receiving the reflection of the ultrasonic wave to detect the person to be measured. In addition to the reflection of light and sound, an infrared irradiator and an infrared light receiver may be arranged on a straight line, and the person to be measured may be detected by blocking this infrared ray. Further, a pressure-sensitive switch may be arranged at the measurement subject's foot, and the measurement subject may be detected by the measurement subject stepping on the switch.

DESCRIPTION OF SYMBOLS 1 Body surface temperature checker 2 Body surface temperature measurement part 2a Infrared detection means 2b A / D conversion means 3 Measuring subject detection part 3a Light projection means 3b Light reception means 3c Distance measurement means 4 Control part 4a Distance discrimination means 4b Trigger generation means 4c Body surface temperature discrimination means 4d Notification control means 4e Correction means 5 Storage section 6 Notification section 6a Display means 6b Ringing means 7 Input / output section 8 Case 9 Holder (support member)
10 Angle 11 Prop member 12 Alignment area 13 Mirror

Claims (4)

It is a body surface temperature checker that is positioned and installed at a predetermined place where a person goes in and out, and measures the body surface temperature one person at a time in a non-contact manner with the person going in and out as a measurement target,
A measurement subject detection unit that detects whether the measurement subject exists in the measurable region and outputs detection information; and
A body surface temperature measurement unit that detects infrared rays emitted from the measurement subject, and measures the body surface temperature of the measurement subject in a non-contact manner based on the detected amount of infrared rays, and outputs a temperature signal;
Based on detection information from the measurement subject detection unit, the presence and departure of the measurement subject from the measurable region is determined, and the timing when it is determined that the measurement subject exists in the measurable region is triggered A body surface temperature checker comprising: a control unit that compares the temperature signal from the body surface temperature measurement unit and a preset threshold value to determine whether the temperature signal is normal or not. Claim 1, further comprising a notifying unit for performing notification said measurable said or presence or not of the measured person determination result for the region and / or the temperature signal in response to normal determination of whether or not the result Body surface temperature checker as described. 3. The body surface temperature checker according to claim 1, wherein after the temperature signal is determined, the controller returns to a standby state when the control unit determines that the measurement subject has left the measurable region. . After receiving the temperature signal from the body surface temperature measuring unit, the control unit determines that the measurement subject has left the measurable region before the result of determining whether the temperature signal is normal is obtained. 4. The body surface temperature checker according to claim 2, wherein the body surface temperature checker according to claim 2 or 3, wherein the body surface temperature checker returns to a standby state after notification for a predetermined period of time.

Images